氨苄青霉素(下称氨苄青)引起的过敏反应常为皮疹,药热和过敏性休克,而发生紫癜者尚属少见。现将我们所见1例报告如下。病例:女,44天。因高热、鼻塞、咳嗽、喉头痰音1天来诊。当时疑诊肺炎而于门诊观察,给予氨苄青(以青霉素作皮试阴性)0.15加10%葡萄糖5毫升静脉缓注,每日二次,并补液和对症处理。第二日体 Ampicillin (hereinafter referred to as ampicillin) caused by allergic reactions often rash, drug fever and anaphylactic shock, and the occurrence of purpura is still rare. Now we see a report as follows. Case: Female, 44 days. Due to high fever, stuffy nose, cough, throat phlegm 1 day visit. At that time suspected pneumonia in the clinic observation, given ampicillin (penicillin skin test negative) 0.15 plus 10% glucose 5 ml intravenous slow, twice daily, and rehydration and symptomatic treatment. Second day body